Navigator CompassNavigator Compass Features:4-1/2" PowerDamp Flat Card Dial with Large NumeralsEasily Installed, Fits 4.75" (12.07cm) Mounting HoleExclusive Built-in Green NiteVu Night IlluminationBuilt-in Compensators to Easily Adjust for DeviationScientifically Matched Sapphire Jewel and Hardened Steel Pivot Dial MovementPowerful DirectiveForce Magnets for Fast Heading Lock-onMovable Sun Shield45 Degree Lubber LinesHigh Temperature Construction for Extended Operating RangeCustom Fitted Protective Covers Available100% RepairableExclusive 5-Year Ritchie WarrantyApprox. Shipping Weight: 2lbs 10oz (1.19 kg)Notes:For Navigators built before 1986 please see the service manual page 6-12 or contact Ritchie for replacement lighting.12 volt lighting standard - 24 & 32 volt lighting options are available.